Climate Data and Brief Summary for Spring 2004

Last updated 18th June 2004

*Anomalies are based on averages for the period 1971-2000

SCREEN TEMPERATURES °c
                                        Anomaly*       Date
Mean                        8.5	  +0.9
Mean Maximum               12.3          +1.1
Mean Minimum                4.7          +0.7
High Maximum               22.2                        16th May 
Low Minimum                -5.6                         2nd March
Low Maximum                 2.2                        12th March
High Minimum               10.6                        26th April
Low Grass                  -8.3                         2nd March
Air Frosts                   6           -5
Ground Frosts               22          -11 
Hours of Frost             43.5

Barometric pressure, 24 hour observations (mbar)
Mean                      1014.9        +0.3
Maximum                   1035.6                        9th March                               
Minimum                    976.0                        5th May

PRECIPITATION (mm)
Total                      169.4         -9.7                                           
Rain days (0.2mm or more)   48           +2                                            
Wet days (1.0mm or more)    35           +2
Maximum Fall                16.6                       16th April
Rainfall duration (hrs.)   108.4
 
SUNSHINE

Sun Hours                  365.3         -8.6	
Maximum day                 13.6                       23rd May
Nil Sun Days                 9

HUMIDITY %

Mean                        82.5
Dry days (60% or less)      44                                                  

WIND (mph)

24hour mean                  3.9
09.00 mean                   4.2
Maximum gust                60.0                      20th March
%North                       5.5
%North East                  3.2
%East                        3.2
%South East                 17.2
%South                       9.2
%South West                 13.0
%West                       17.4
%North West                 29.1
%Calm                        2.2
Hours of calm              201.0

MISCELLANEOUS

Days with:

Sleet/Snow                   4           -3    
Snow lying (09.00)           1           -2
Maximum depth (cm)           1.0                          
Total snow depth (cm)        1.0		       12th March	
Hail                        10           +4
Thunder                      2           -2
Fog (09.00)                  4            0

Brief summary of the month:
Spring 2004 was the coolest since 2001, although average temperatures 
were still well above normal. It was the dullest since 2001 with 97% 
of the average. Despite again having below average rainfall it was the 
wettest since 2002. To sum up, it was a rather warm Spring with 
rainfall and sunshine totals close to normal.

All data taken at 220 metres above sea level


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